High quality clinical trial and meta-analysis have demonstrated short term, and to a lesser extent, long term benefits in various outcome measures. To achieve positive effects, supervised progressive strength and aerobic endurance training program of 12 weeks was required. Extended progressive strength training improved muscle strength for up to 24 months. While aerobic endurance training would increase walking capacity up to 16 months. 1 There are data suggesting a threshold of intensity of exercise to be reached for the positive effect. This overall body of evidence suggests that regular vigorous exercise should be accorded a central place in the treatment of Parkinson's disease.

However, there was no evidence about regular intensive exercise of running in Parkinson's disease. And most of the studies were not randomized with a control group.

In this study, the investigators are to investigate the effect of regular vigorous aerobic exercise training of running on motor and non-motor symptoms, and quality-of-life of people with Parkinson's disease.

There is growing volume of evidences support the positive effect of exercise and physical therapy to Parkinson's disease. Various exercise types have shown different positive effects. Gait training for 4 weeks showed a moderate improvement in balancing while balance training of 8 to 26 weeks decreased fall rate. Cued exercise would mildly increase the speed of the gait. Complementary exercises, such as Tai Chi and dancing, have shown improvement in balancing of the patients.

One of the main complaints of Parkinson's disease is rigidity. It is because of the musculoskeletal impairments which compromise the flexibility and stability of both axial structure (spine) and the extremities. Truncal stiffness and rigidity results in a stooped posture, which further undermines one's balance and agility. Flexibility training (stretching) is shown to be beneficial to all stages of patients with Parkinson's disease, in terms of improved both range of movement in joints and spinal stability. It is recommended that regular stretching should be the first step in one's exercise program to combat the muscle rigidity. High quality clinical trial and meta-analysis have demonstrated short term, and to a lesser extent, long term benefits in various outcome measures. To achieve positive effects, supervised progressive strength and aerobic endurance training program of 12 weeks was required. Extended progressive strength training improved muscle strength for up to 24 months. While aerobic endurance training would increase walking capacity up to 16 months.

There are data suggested a threshold of intensity of exercise to be reached for the positive effect. This overall body of evidence suggests that regular vigorous exercise should be accorded a central place in the treatment of Parkinson's disease.

In this study, the investigators are to investigate the effect of regular vigorous aerobic exercise training of running on motor and non-motor symptoms, and quality-of-life of people with Parkinson's disease.

Inclusion Criteria:

1. Patient with idiopathic Parkinson's disease, aging from 40 years to 60 years old.
2. Patient who are able to walk independently without walking aids for a distance of 30 meters.

Exclusion Criteria:

1. Previous history of other neuro-degenerative diseases
2. Presence of ischemic heart disease or musculoskeletal and cardiopulmonary diseases
3. Presence of physical disability
4. History of regular running practice in the past 6 months.

Patient do not consent for sharing the data.

The assessment will be taken by three blinded assessors (one occupational therapist, a registered research nurse and a research assistant) at baseline, at completion of the training and 6 months after, at Prince of Wales Hospital.